Rotary engine.



No. 789,630. PATENTED MAY 9, 1905.

I S. S. SADORUS. ROTARY ENGINE.

APPLICATION FILED SEPT, 13. 1904.

u 3 SHEETS-SHEET 1.

mmmm i ATTORNEYS PATENTED MAY 9, 1905.

S. S. SADORUS.

ROTARY ENGINE.

APPLICIATION FILED SEPT. 13, 1904.

IN VENT 0 I? Jamaal 1i jadogwf.

WITNESSES:

ATTORNEYS PATENTED MAY 9, 1905.

3 SHEETS-SHEET 3.

lllllllllll III! f F T my g ATTORNEYS ldivirnn rates Patented May 9, 19055.

ATENT prrl llio ROTARY lENGdNE.

SPECIFICATION forming part of Letters Patent No. 789.630, dated May 9, 1905.

Application filed $cptcn1ber 13,1904. Serial No 224,267.

' engines; and it consists in certain novel eonstructions and combinations ol parts, as will be heremal'ter described and claimed.

in the ('lrawings, F igure 1 is a transverse section of the engine on about line i 1. oi Fig. 2. Fig. 2 a cross-section on about line 2 2 of Fig. 1. Fig. 3 is a side view ol the engine with one cl the side plates of the casing re- :moved. Fig. 4: is a detail side elcvation'ot the inner face of one of the side plates of the casing. Fig. 5 is a detail perspective view of the inner side of a portion of one of the side plates of the casing. Fig. 6 is a detail perspective view of a portion of the rimplate oi the casing, showing one of the abutmcnts. Fig. 7 is a detail perspective view of a portion oi one of the side flanges of the piston. Fig. 8 is a detail perspective view of a portion of the rim of the piston. Fig. i) is a detail perspective view of one of the piston-heads, and Fig. 10 is a detail cross-section, enlarged, on about line ll) 10 of Fig. 3.

In carrying out my invention I employ a casinghavingsi dc plates AA. and a rim-plate B, the latter being provided at B with steaminlets and adjacent thereto with abutments i), exhaust-ports B being suitably provided, as best shown in Fig. 1 ol" the drawings.

The side plates A are suitably secured to the rim B, and these plates A are provided on their inner sides with the 0utwardly-lacing track A, which is depressed at a adjacent to the steam inlets and exhausts to permit the operation of the piston-heads in passing betwcel'i the exhausts B and the abutments B and in passing said abutanents in the operation of the engine, as will be more fully described hereinafter. The forn'iatioi r of these tracks A provide at the outer edges of the plates A, adjacent to the rim B, annular recesses (i in which operate the crankarms 0 ol the piston-heads C. These piston- .heads C consist each ol a blade. C the crankarms C at the opposite sides 01 said blade C and the trunnion or shal't portions C whichv connect the inner ends ol the blade (1" with the cranlcarms C at the inner end oi the latter, as best shown in Fig. 9 of the drawings. These piston-heads are termed with the blades, crank-arms, and shalts and trunnions integral, and this is preferred, because thereby I avoid any loosening oi the parts because of del'ects or wear in the oints and retain the parts C and C permanently in the desired relation.

The piston D may be suitably secured to the shaft l] and has its rim D provided in its outer face with the recesses D which are of such size and shape as to receive the blades C of the piston-heads O when the latter are folded down to position to pass the abutments b of the casing in the operation of the engine. At one end the recesses D are slightly rounded at (Z to Form seats or bean ings, in which the piston-heads rock from open to closed position, both such positions being shown in Fig. 3 of the drawings. The piston is also provided at the opposite sides of its rim with flanges D, which are secured to the opposite sides of the rim D and are provided opposite the seats d of the rim D with bearings (Z for the trunnions C of the piston-heads C. It will ben oticed that these bearings (Z are formed by slots extending from the inner edges of the rim-plates D. This is important, as it htcilitates assembling the parts D, D, and C by permitting the application of the side llanges D to the rim 1) after the heads C have been applied to such rim, the crank-arms C of the piston-heads passing through the slots (Z in. the flangeplates D. By preference 1 provide filling- V blocks F For closing the outer ends of the slots d after the flange-plates have been secured to the rim, such filling-blocks F having curved seats f at their ends to tit the trunnions C", and thus torn'ring boxes for the said trunnions, the plates F being secured to the rim D, as will be understood from Figs. 7 and 10 of the drawings.

By preference I provide the two steam-.in lets B and corresponding exhausts B and provide in connection with the steam-feed pipe G a branch pipe g, which conducts the feed-steam to the lower inlet-port B, as best shown in Fig. 2 of the drawings.

In the operation of the engine the steam delivered at the feed-ports will operate between the adjacent abutments b and the piston-blades in advance thereof and drive the piston in the direction indicated by the arrow in Fig. 1, the track (1 operating upon the crank-arms C of the pistons to hold the same across the steam-space in the position shown at the upper portion of Fig. 1 until the piston reaches the exhaust-port, as shown at the right in the lower portion of Fig. 1, when the cut-away portion a of the track will permit the piston-head to tilt, so steam or the like will not be compressed between'the same and the abutment which it approaches, and the blade may also be seated in its recess (1 as it passes such abutment and will again be brought to position to receive the impact of the steam admitted at the lower feed-port, and the operation will proceed as before.

The construction is simple and economical. easily constructed and assembled, and will be found to operate advantageously in the manner described.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The improvement in rotary engines herein described comprising a casing having its side plates provided on their inner sides near their outer edges with outwardly-facing tracks having depressed portions, and the piston having a rim provided in its outer side with recesses for the blades of the pistonheads and rounded at one end of said recesses to form seats for the said heads, the flangeplates secured to the rim of the piston and provided opposite the rounded seats of the rim-recesses with slots extending from their inner edges and formed at their inner ends with seats for the trunnions of the pistonheads, the piston-heads having the blades, outwardly-projecting trunnions at the inner ends of the blades and the crank-arms projecting from the outer ends of said trunnions and operating outside of the flange-plates and in position to engage the outwardly-facing tracks on theside plates of the casing, and the filling-plates secured within the slots of the flange-plates and forming boxes for the trunnions of the piston-heads substantially as set forth.

2-. In a rotary engine a piston having a rim provided with recesses for the blades of the piston-heads, the piston-heads having the integral blades, crank-arms at the opposite sides thereof and trunnions connecting said crank-arms with the inner ends of the blades, and the flange-plates secured to the opposite sides of the piston-rim and provided with slots extending outwardly from their inner edges and adapted to pass over the crankarms of the piston-heads and form seats for the connecting-trunnions of such heads. substantially as set forth.

The combination in a rotary engine of the casing having side plates provided at their inner faces with the outwardly-facing tracks for the crank-arms of the piston-heads, the piston operating in the casing and having its rim provided with recesses for the blades of the piston-heads, the piston-heads having the integral blades, trunnions or shafts and crank-arms, the flange-plates secured to the opposite sides of the rim of the piston and provided with slots extending from their inner edges and forming passages for the crank-arms of the piston-heads, substantially as set forth.

4. The combination in a rotary engine with the piston-rim provided in its outer face with recesses forming seats for the blades of the piston-heads, of the piston-heads having the integral blades, shafts and trunnions and the flange-plates secured to the opposite sides of the piston-rim and having slotted openings for the passage of the cranlearms in assembling the rim-flange plates and piston-heads substantially as set forth.

SAMUEL S. SADORU S.

Vitnesses JoirN Moon, A. L. BROMER. 

